Media gallery

Marcusenius monteiri, 94 mm SL, tag no. JPS-113

Marcusenius monteiri, 205 mm SL, tag no. JPS-202

Marcusenius monteiri, 190 mm SL, tag no. JPS-275

Marcusenius stanleyanus, 138 mm SL, tag no. JPF-1920

Marcusenius monteiri, 188 mm SL, tag no. JPF-1921

Gnathonemus thomasi Boulenger (= Marcusenius thomasi) holotype BMNH 1915.4.13.5, Northern Sherbo District, Sierra Leone

Gnathonemus annamariae Parenzan (=Marcusenius annamariae), Lake Regina Margherita, southern Ethiopia

Mormyrus abbreviatus Valenciennes (=Marcusenius cyprinoides) holotype MNHN A-9392, Nile River, Egypt.

Mormyrus labiatus Geoffroy St. Hilaire 1809, syntype MNHN A-9616 Nile River, Egypt

Gnathonemus friteli Pellegrin (= Marcusenius friteli) holotype MNHN 1886-0320, Alima River, Diélé, Congo basin.

Gnathonemus furcidens Pellegrin (= Marcusenius furcidens) syntype MNHN 1920-0032 (1 of 3), Ivory Coast

Marcusenius intermedius Pellegrin holotype (unique) MRAC 15164, Kasaï River at Kabambaie, 5°45' S, 20°49' E, D.R. Congo

Mormyrus macrolepidotus Peters (= Marcusenius macrolepidotus) paralectotype ZMB 3678. Tette, Mozambique.

Gnathonemus angolensis Boulenger (= Marcusenius macrolepidotus angolensis) holotype (unique): BMNH 1905.5.29.64.Quanza River, An

Mormyrus monteiri Günther (=Marcusenius monteiri) syntype BMNH 1873.7.28.3, Boma, Congo River, Democratic Republic of Congo

Syntypes of Mormyrus lepturus Günther (synonym of Marcusenius moorii), BMNH 1872-1-27-4-5, Gabon

Gnathonemus nyasensis Worthington (= Marcusenius livingstonii), syntypes BMNH 1932.11.15.25–34, Lake Malawi [Lake Nyasa]

Gnathonemus rheni Fowler (= Marcusenius rheni) paratype ANSP 65544, Lake VIctoria at Kitala, Uganda

Macusenius stanleyanus, illustration of holotype (Boulenger, 1909, p. 108)

Illustration of the type specimen of Gnathonemus monteiri Günther (Marcusenius monteiri) from p.106 of Boulenger (1909).

Illustration of Gnathonemus cyprinoides (=Marcusenius cyprinoides) from Boulenger's Fishes of the Nile (1907)

Marcusenius devosi Kramer, Skelton, van der Bank & Wink, Lower Tana River, Kenya.

Marcusenius moorii (Günther) 128 mm TL, Lake Carumbo, affluent of Luchico River, Angola. From Poll (1967).

Marcusenius stanleyanus Boulenger 211 mm TL, Luachimo River, Angola. From Poll (1967).

EOD waveform of Marcusenius monteiri tag no. JPF-1921, 24.7°C

Marcusenius moorii EOD waveform. Head positivity upward.

EOD of Marcusenius kutuensis, specimen JPS98-2450, Yobé River tributary of of Sanga R., C.A.R.

Marcusenius stanleyanus, 128 mm SL

Marcusenius cyprinoides CU 94647, Alwero River (White Nile) below dam at Abobo, Gambella, Ethiopia

Marcusenius kutuensis female 178 mm SL, JPS98-2450, AMNH 228156, Yobé River, Sangha River basin, C.A.R.

Marcusenius monteiri tag no. JPS-070

Marcusenius stanleyanus, 93 mm SL, tag no. JPS-231

Marcusenius monteiri, 112 mm SL, tag no. JPF-1893

Gnathonemus ghesquierei Poll, 1945 illustration of holotype

Gnathonemus kutuensis Boulenger (=Marcusenius kutuensis) illustration of holotype MRAC 664, Lake Leopold II [Mai Ndombe]

Gnathonemus schilthuisiae Boulenger (=Marcusenius schilthuisiae), illustation of syntype

Mormyrus ussheri Günther (= Marcusenius ussheri) holotype BMNH 1867.4.12.8, Bossumprah River, Ghana

Gnathonemus abadii Boulenger (=Marcusenius abadii) holotype BMNH 1900.3.26.4, Djebba, Upper Niger

Gnathonemus gilli Boulenger holotype BMNH 1904.1.20.10, Assay, southern Nigeria

Gnathonemus cuangoanus Poll (=Marcusenius cuangoanus) holotype MRAC 164318, Zovo, Uamba River, tributary of Cuango River, Angola

Mormyrus cyprinoides Linnaeus (=Marcusenius cyprinoides) holotype NRM 62, Nile River.

Gnathonemus fuscus Pellegrin (= Marcusenius fuscus) lectotype MNHN 1890-0009 and paralectotypes MNHN 1890-0008, Congo

Gnathonemus ghesquierei Poll (= Marcusenius ghesquierei) holotype MRAC 46288

Gnathonemus leopoldianus Boulenger (= Marcusenius leopoldianus) syntypes BMNH 1899.9.26.41 (1 of 3). Lake Mai Ndombe

Gnathonemus livingstonii Boulenger (= Marcusenius livingstonii) holotype (unique) BMNH 1864.7.9.30. Rovuma [Ruvuma] R., Tanzania

Gnathonemus moeruensis Boulenger (= Marcusenius macrolepidotus) holotype (unique) MRAC 14137, Lake Moero, D.R. Congo

Marcusenius meronai Bigorne & Paugy 1990, holotype MNHN 1989-0967, Rokel at Kondembaya, Sierra Leone.

Holotype of Mormyrus grandisquamis Peters (synonym of Marcusenius moorii), ZMB 9331, Ogooué, Gabon

Lectotype of Gnathonemus lambouri Pellegrin (synonym of Marcusenius moorii), MNHN 31710, Dielé, Alima River, Republic of Congo

Gnathonemus moorii longulus David & Poll (= Marcusenius lambouri) holotype MRAC 31710, Bumba, Congo River basin, D.R. Congo

Mormyrus senegalensis Steindachner (= Marcusenius senegalensis) syntype NMW 55109.1, Taoué and Dagana, Senegal.

Gnathonemus gracilis Pellegrin (= Marcusenius senegalensis gracilis) holotype MNHN 1922-0023, Gribingui River, C.A.R.

Mormyrus stanleyanus (= Marcusenius stanleyanus) holotype (unique) BMNH 1897.9.30.24, Stanley [Boyoma] Falls, Upper Congo (DRC)

Marcusenius ntemensis, Ivindo River at Loa-Loa rapids, Gabon

Marcusenius friteli, Lékoli River, Odzala National Park, Rep. of Congo (Congo Basin)

Illustration of Gnathonemus macrolepidotus (=Marcusenius macrolepidotus) from Boulenger's Fishes of the Nile (1907)

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